(0 4 2)(1 10 8)(3 13 5)(6 19 18)(7 16 14)(9 12 11)(15 20 17)
ALLOWS (11/8)-SEQUENCE
1: (4 9 12)

(0 4 11 9 2)(1 10 8)(3 13 5)(6 19 18)(7 16 14)(12)(15 20 17)
2: (1 10 8)

(0 4 11 9 2)(1)(3 13 5)(6 19 18)(7 16 14)(8)(10)(12)(15 20 17)
3: (0 4 2)

(0)(1)(2 11 9)(3 13 5)(4)(6 19 18)(7 16 14)(8)(10)(12)(15 20 17)
4: (3 13 5)

(0)(1)(2 11 9)(3)(4)(5)(6 19 18)(7 16 14)(8)(10)(12)(13)(15 20 17)